cool·ant /ˈkulənt/
冷凍劑
coolant
冷卻劑
coolant
冷卻劑
coolant
n : a fluid agent (gas or liquid) that produces cooling;
especially one used to cool a system by transfering heat
away from one part to another; "he added more coolant to
the car's radiator"; "the atomic reactor used a gas
coolant"; "lathe operators use an emulsion of oil and
water as a coolant for the cutting tool"